公开(公告)号：US20150247928A1

公开(公告)日：2015-09-03

申请号：US14193048

申请日：2014-02-28

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Gangadhar Burra ,  Srinath Hosur

IPC: G01S19/03

CPC classification number: G01S19/03 ,  G01S19/05 ,  G01S19/09 ,  G01S19/35

Abstract: A location or position sensor apparatus and sensor systems are presented, in which individual location sensors store and wirelessly exchange orbital information, soft demodulation information, position and time of day information, and the sensors share decoding and computation tasks related to acquiring and tracking navigation satellites to conserve power and to facilitate determination of sensor positions.

Abstract translation: 提出了一种位置传感器装置和传感器系统，其中各个位置传感器存储和无线地交换轨道信息，软解调信息，位置和时间信息，并且传感器共享与获取和跟踪导航卫星有关的解码和计算任务 以节省电力并便于确定传感器位置。

公开(公告)号：US20150207521A1

公开(公告)日：2015-07-23

申请号：US14587433

申请日：2014-12-31

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: H03M13/09 ,  H03M13/00 ,  H04L1/00

CPC classification number: H03M13/091 ,  G06F11/1004 ,  H03M13/09 ,  H03M13/093 ,  H03M13/37 ,  H03M13/617 ,  H03M13/6502 ,  H03M13/6508 ,  H03M13/6519 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/242 ,  H04L1/243 ,  H04L2001/0093

Abstract: Methods and apparatus for operating a communication system comprising three or more communication transceivers. In illustrative embodiments, multiple different cyclic redundancy check (CRC) generation schemes are maintained. Each CRC generation scheme corresponds to a unique CRC residual value. A CRC value generated using one of the CRC generation schemes is placed in a data packet to be transmitted. The chosen CRC generation scheme reflects which one or more transceivers are intended recipients of the data packet. When a data packet is received by a transceiver, a CRC residual value is calculated based on the CRC value contained in the received data packet. The calculated CRC residual value is compared against a list of one or more valid CRC residual values for that particular transceiver. If the calculated CRC value matches one of the listed valid CRC residual values, the data packet is accepted, otherwise it is rejected.

Abstract translation: 用于操作包括三个或更多个通信收发器的通信系统的方法和装置。 在说明性实施例中，维持多个不同的循环冗余校验（CRC）生成方案。 每个CRC生成方案对应于唯一的CRC残差值。 使用CRC生成方案之一生成的CRC值被放置在要发送的数据分组中。 选择的CRC生成方案反映了哪个一个或多个收发器是数据分组的预期接收者。 当收发器接收到数据分组时，基于接收的数据分组中包含的CRC值来计算CRC残差值。 计算的CRC残差值与该特定收发器的一个或多个有效CRC残差值的列表进行比较。 如果计算出的CRC值与列出的有效CRC剩余值中的一个匹配，则数据包被接受，否则被拒绝。

公开(公告)号：US20130124129A1

公开(公告)日：2013-05-16

申请号：US13738499

申请日：2013-01-10

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: G01C17/38 ,  G06F17/00

CPC classification number: G01C17/38 ,  G06F15/00 ,  G06F17/00

Abstract: Visual codes are scanned to assist navigation. The visual code may be a Quick Response (QR) code that contains information useful to calibrating a variety of navigation-based sensors such as gyroscopes, e-compasses, and barometric pressure sensors. Embodiments describe methods for magnetometer calibration and computing sensor orientation relative to users' local frame of reference. The embodiments use an initial yaw estimate, accelerometer, and gyroscope measurements along with other readily available information (the earth's magnetic field intensity, inclination angle, and declination angle).

Abstract translation: 扫描视觉代码以辅助导航。 视觉代码可以是快速响应（QR）代码，其包含用于校准各种基于导航的传感器（例如陀螺仪，电子罗盘和大气压力传感器）的信息。 实施例描述了相对于用户本地参考系的磁力计校准和计算传感器取向的方法。 这些实施例使用初始偏航估计，加速度计和陀螺仪测量以及其他容易获得的信息（地球的磁场强度，倾斜角度和偏角）。

公开(公告)号：US12124393B2

公开(公告)日：2024-10-22

申请号：US17587695

申请日：2022-01-28

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Xiaoxi Bruce Zhang

IPC: G06F13/40 ,  G06F13/42

CPC classification number: G06F13/4068 ,  G06F13/4282 ,  G06F2213/0016

Abstract: An example system includes: a device coupled to a data line, the device configured to: send a first command on the data line, the first command including a first address; after sending the first command, read a first value on the data line, the first value including data from a first target device and a second target device; responsive to reading the first value, send a second command including the first address and data representing the first value on the data line; send a third command on the data line, the third command including the first address; after sending the third command, read a second value on the data line, the second value including data from the first target device and the second target device; responsive to reading the second value, send a fourth command on the data line, the fourth command including the first address.

公开(公告)号：US12086013B2

公开(公告)日：2024-09-10

申请号：US17505522

申请日：2021-10-19

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Gregory Wallis Collins

IPC: G06F1/3287 ,  G06F1/26 ,  G06F13/38 ,  G06F13/40 ,  G06F13/42

CPC classification number: G06F1/3287 ,  G06F1/266 ,  G06F13/385 ,  G06F13/4022 ,  G06F13/4282 ,  Y02D10/00 ,  Y02D30/50

Abstract: Described examples include USB port controllers with a control circuit configured to switch from a normal first power mode to a second power mode for reduced power consumption in response a command from a port manager circuit, and to switch from the second power mode to the first power mode in response to detected activity on a communications connection, or a detected connection of a USB device to a USB port connector. After switching back to the first power mode in response to detected communications activity, the control circuit automatically switches operation of the USB port controller back to the second power mode unless a communications transaction addressed to the USB port controller is received within a non-zero certain time after switching from the second power mode to the first power mode.

公开(公告)号：US20240283454A1

公开(公告)日：2024-08-22

申请号：US18652901

申请日：2024-05-02

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: H03K19/003

CPC classification number: H03K19/00346

Abstract: An example method includes determining, by a controller of a device, whether a length of transmission data is longer than a threshold and responsive to determining that the length of data is longer than the threshold, setting, by the controller a deglitch duration to a duration. The method also includes transmitting, by the device, the data, while the deglitch duration has the duration.

公开(公告)号：US10895899B2

公开(公告)日：2021-01-19

申请号：US15856697

申请日：2017-12-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters

IPC: G06F1/26 ,  G06F1/28 ,  H02M3/137 ,  G06F13/40 ,  G06F13/42

Abstract: A circuit includes a regulation circuit configured to intercept messages on a configuration channel of a universal serial bus (USB) cable between a USB source device and a USB sink device. The regulation circuit regulates a source capability message from the USB cable configuration channel based on a predetermined power capability of the USB cable.

公开(公告)号：US20200044568A1

公开(公告)日：2020-02-06

申请号：US16597385

申请日：2019-10-09

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: H02M3/335 ,  H02J13/00 ,  G06F1/26

Abstract: A system may include a power supply configurable to generate any of a plurality of output voltages on a power supply output node. The system also may include a voltage auto-detection power distribution (PD) controller coupled to the power supply. The voltage auto-detection PD controller is configured to monitor an input signal for detection of presence of a device coupled to the system via a cable and assert combinations of a plurality of control signals. For each combination of control signals, the voltage auto-detection PD controller measures a value of an output voltage from the power supply, stores the measured value, and generates a plurality of packets for transmission to the device. Each packet contains a parameter indicative of a measured output voltage.

公开(公告)号：US10527453B2

公开(公告)日：2020-01-07

申请号：US15845984

申请日：2017-12-18

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Jayawardan Janardhanan ,  Saket Thukral

IPC: G01C23/00 ,  G01D18/00 ,  G01C21/16 ,  A61B8/00 ,  A61B8/08 ,  G01S19/48 ,  A61B5/00 ,  G01S19/47 ,  G01S19/49 ,  G08B21/04 ,  G01S19/34 ,  G06F19/00 ,  A61B5/053 ,  H04N5/232 ,  H04N7/18 ,  G06F1/32 ,  G06K9/62 ,  A61B5/145 ,  G16H40/40 ,  G16H20/30 ,  G16H15/00

Abstract: A system comprises a plurality of sensors, a sensor processor, and a sampling rate engine. The sensor processor is coupled to an output of each sensor of the plurality of sensors. The sensor processor estimates user dynamics in response to a first output signal of a first sensor of the plurality of sensors. The sampling rate engine is coupled to an output of the sensor processor. The sampling rate engine determines a sampling rate value of a second sensor of the plurality of sensors in response to a user dynamics value from the sensor processor. The second sensor comprises a selectable sampling rate. The selectable sampling rate is configured in response to the sampling rate value determined by the sampling rate engine.

公开(公告)号：US09851204B2

公开(公告)日：2017-12-26

申请号：US13738499

申请日：2013-01-10

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: G01C17/38 ,  G06F17/00 ,  G06F15/00

CPC classification number: G01C17/38 ,  G06F15/00 ,  G06F17/00

Abstract: Visual codes are scanned to assist navigation. The visual code may be a Quick Response (QR) code that contains information useful to calibrating a variety of navigation-based sensors such as gyroscopes, e-compasses, and barometric pressure sensors. Embodiments describe methods for magnetometer calibration and computing sensor orientation relative to users' local frame of reference. The embodiments use an initial yaw estimate, accelerometer, and gyroscope measurements along with other readily available information (the earth's magnetic field intensity, inclination angle, and declination angle).